386 



MANIPULATION. 



drawn from the ferrule, and, when made straight, is slid 



within the hollow top-joint, and this last placed within the 



larger joint ; the whole may then be used as a walking-stick, 



the screw, B, having first been properly secured 



in the lower end of the large joint. 



Mr. Spencer, of Blackheath, has communi- 

 cated to the author a plan which he adopts 

 for securing the bottle to the end of a rod 

 or walking-stick. He takes a piece of gutta 

 percha tubing, about five or six inches in 

 length, and cuts it in such a manner, both 

 vertically and horizontally, as to leave one 

 portion of the tube, about an inch in length, 

 untouched, the cut end, as shown in fig. 255, 

 being passed through the tubular part so as to 

 form a loop. This loop is placed round the 

 neck of the bottle and drawn tight ; the end 

 of the walking-stick is then passed into the 

 tube, and should be of sufficient size to fill it 

 up and keep the end of the loop secure. This 

 httle instrument is most convenient; it does 

 not soil or become soft by the action of water, 

 and its cost is very trifling. 



Mr. John "Williams has recom- 

 mended an exceedingly simple modi- 

 fication of the above described appa- 

 ratus for collecting Infusoria. It 

 consists merely of a strip of thin 

 whalebone, a quarter of an inch wide 

 and about eighteen inches long, and 

 three brass curtain rings ; the manner 

 in which these are applied will be 

 easily understood by referring to 

 figs. 256 and 257, the one repre- 

 senting the application to a walk- 

 ing-stick, the other to an umbrella. 

 The loops d, and h, are for the re- 

 ception of the neck of the phial. 



Fig. 255. 



Figs. 256 and 257. 



